Growing Sunflower in Migori

Soil suitability analysis based on Migori's nutrient profile

Migori County is a challenging environment for Sunflower (soil-match score 44/100) and will need significant amendment before planting. At an average pH of 5.43 the soil is moderately acidic, below Sunflower's preferred 6–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. Nitrogen (1.2 g/kg), phosphorus (12.2 mg/kg) and potassium (169 mg/kg) all meet Sunflower's requirements, so a maintenance fertilizer programme is enough. Sunflower prefers sandy soils, while Migori is largely clay loam, so drainage and organic-matter management matter more here. Sunflower's full potential is about 750 kg/acre (~KES 36,000/acre at KES 48/kg), but at Migori's 44/100 suitability a realistic target here is closer to 413 kg/acre (~KES 19,824/acre) unless the constraints above are addressed.